Explanation

• Istelam means kissing Hajr-e-Aswad (the Black Stone) or touching it.
• Aswad means کالا یا سیاہ رنگ کا
• It is located in the eastern corner of the Kaaba.
• It is performed during Tawaf in Hajj and Umrah.
• It shows love and respect for the Sunnah of Prophet Muhammad (PBUH).

Last verified on 16-05-2026

Explanation

25*25 = 625

Last verified on 09-07-2026

Explanation

• Independence date: 16 December 1971
• New name: Bangladesh
• Previous name: East Pakistan / East Bengal
• Event: Bangladesh Liberation War (1971)
• Region: South Asia

Last verified on 25-06-2026

Explanation

• Artist: Leonardo da Vinci (1452–1519)
• Painting Period: 1503–1519
• Origin: Italy
• Current Location: Louvre Museum, Paris, France
• Famous Features: Mysterious smile, sfumato technique, widely copied and recognized globally

Last verified on 18-01-2026

Explanation

• A Fathometer is used to measure the depth of the ocean, sea, or any body of water.
• It determines the distance from the water surface to the seabed.
• The instrument works using sound waves (echo sounding).
• It measures the time taken for sound waves to travel to the seabed and return.

Additional information:

• Galvanometer → Measures electric current
• Barometer → Measures atmospheric pressure
• Thermometer → Measures temperature
• Hygrometer → Measures humidity

Last verified on 06-07-2026

Explanation

• Namaz-e-Istisqa pray for rain at local mosques.

Additional information:

• Namaz-e-Khasoof (نماز خسوف) is offered at the time of Lunar eclipse.
• Namaz-e-Kasoof (نماز کسوف) is offered at the time of Solar eclipse.

Last verified on 01-07-2026

Explanation

• Author: Benazir Bhutto
• Book Type: Autobiography
• Published: 7th January 1989
• Publisher: Simon & Schuster
• Theme: Politics, struggle, democracy

Additional information:

• Benazir Bhutto was the first female Prime Minister of Pakistan.
• She served two non-consecutive terms: 1988–1990 and 1993–1996.

Last verified on 20-06-2026

Explanation

OIC (Organization of Islamic Cooperation)

• Foundation Date: 25 September 1969
• Headquarters: Jeddah, Saudi Arabia
• Official Languages: Arabic, English, French
• Total Members: 57 countries
• First Summit: Rabat, Morocco
• Significance: Largest international organization after the UN

Last verified on 20-06-2026

Explanation

• Radius is a singular noun; its traditional Latin plural is radii.
• In mathematics and geometry, radii is the standard plural form.
• Example: The radii of the circles were measured accurately.

Last verified on 06-06-2026

Explanation

• The hardest substance in the world is diamond.
• Its hardness is due to the strong covalent bonding between its carbon atoms.
• This making it the most resistant to scratching.

Additional information:

• Category: Native minerals
• Cleavage: 111 (perfect in four directions)
• Crystal class: Hexoctahedral (m3m); H-M symbol: (4/m 3 2/m)
• Crystal habit: Octahedral
• Crystal system: Cubic
• Dana classification: 1.3.6.1
• Density: 3.5–3.53 g/cm3 3500–3530 kg/m3

Last verified on 07-06-2026